JPS5897953A - Data transmisson system of subscriber telephone circuit - Google Patents

Data transmisson system of subscriber telephone circuit

Info

Publication number
JPS5897953A
JPS5897953A JP19715681A JP19715681A JPS5897953A JP S5897953 A JPS5897953 A JP S5897953A JP 19715681 A JP19715681 A JP 19715681A JP 19715681 A JP19715681 A JP 19715681A JP S5897953 A JPS5897953 A JP S5897953A
Authority
JP
Japan
Prior art keywords
terminal
center
function
transmitting
receiving function
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP19715681A
Other languages
Japanese (ja)
Other versions
JPH021417B2 (en
Inventor
Kazuhiko Shirai
Tatsuo Matsubara
Yasubumi Shiromizu
Toshiharu Takatsuki
Isao Sano
Kuniaki Okada
Kyoichi Nakakawara
Yuzo Tsuruta
Fukue Ogawa
Original Assignee
Nec Corp
Nippon Telegr & Teleph Corp <Ntt>
Toshiba Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nec Corp, Nippon Telegr & Teleph Corp <Ntt>, Toshiba Corp filed Critical Nec Corp
Priority to JP56197156A priority Critical patent/JPH021417B2/ja
Publication of JPS5897953A publication Critical patent/JPS5897953A/en
Publication of JPH021417B2 publication Critical patent/JPH021417B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M11/00Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/002Telephonic communication systems specially adapted for combination with other electrical systems with telemetering systems

Abstract

PURPOSE:To perform originating incoming at a terminal for the automatic inspection of a water-work meter, etc., and to obtain a simplified, high-reliability device, by using a common data transmission and reception sequence between the terminal and a center side. CONSTITUTION:A CPU1 controls a center network controller 3, which has a transmitting function for dial information necessary for a connection between a special trunk 8 and a terminal network controller 10, a transmitting and receiving function for various control signals, a receiving function for a call signal of 16Hz for terminal origination, a transmitting and receiving function for various control signals, and a modulating and demodulating function for data communication. Further, the trunk 8, fitted to an exchange 7, serves as a call side for a center side device or calling side for a terminal device 13 during center origination and has a no-ringing connection function for the device 10. Further, a common data transmission and reception sequence is employed after the terminal and center side are connected mutually.
JP56197156A 1981-12-07 1981-12-07 Expired - Lifetime JPH021417B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56197156A JPH021417B2 (en) 1981-12-07 1981-12-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56197156A JPH021417B2 (en) 1981-12-07 1981-12-07

Publications (2)

Publication Number Publication Date
JPS5897953A true JPS5897953A (en) 1983-06-10
JPH021417B2 JPH021417B2 (en) 1990-01-11

Family

ID=16369692

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56197156A Expired - Lifetime JPH021417B2 (en) 1981-12-07 1981-12-07

Country Status (1)

Country Link
JP (1) JPH021417B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6051096A (en) * 1983-08-29 1985-03-22 Nippon Telegr & Teleph Corp <Ntt> Incoming connecting system of private branch exchange
JPS6080397A (en) * 1983-10-07 1985-05-08 Nec Corp Incoming system in private branch of exchange
JPH03113955A (en) * 1989-09-27 1991-05-15 Sharp Corp Communication method between data setting device and network controller

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52144201A (en) * 1976-05-26 1977-12-01 Hitachi Ltd Data communication system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52144201A (en) * 1976-05-26 1977-12-01 Hitachi Ltd Data communication system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6051096A (en) * 1983-08-29 1985-03-22 Nippon Telegr & Teleph Corp <Ntt> Incoming connecting system of private branch exchange
JPS6080397A (en) * 1983-10-07 1985-05-08 Nec Corp Incoming system in private branch of exchange
JPH03113955A (en) * 1989-09-27 1991-05-15 Sharp Corp Communication method between data setting device and network controller

Also Published As

Publication number Publication date
JPH021417B2 (en) 1990-01-11

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